2544406 has 4 divisors (see below), whose sum is σ = 3816612. Its totient is φ = 1272202.

The previous prime is 2544403. The next prime is 2544457. The reversal of 2544406 is 6044452.

2544406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636100 + ... + 636103.

It is an arithmetic number, because the mean of its divisors is an integer number (954153).

2^2544406 is an apocalyptic number.

2544406 is a deficient number, since it is larger than the sum of its proper divisors (1272206).

2544406 is a wasteful number, since it uses less digits than its factorization.

2544406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272205.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2544406 is about 1595.1194312653. The cubic root of 2544406 is about 136.5197456083.

Adding to 2544406 its reverse (6044452), we get a palindrome (8588858).

The spelling of 2544406 in words is "two million, five hundred forty-four thousand, four hundred six".